Sancho_P's Profile

NTC to Voltage Converter PUBLIC

A converter from temperature to voltage using a NTC sensor, to be used to control a computer fan. You’ll find “strange” objects and some explanation ...

by Sancho_P | updated April 15, 2013

celsius   explain   newbie   ntc   ntc-b57861-s861  

Test: LM 317 voltage regulator PUBLIC

CL’s LM317 adjustable regulator seems to be bad - but is it? How to find “realistic” values for R_O and R_ADJ? Also see @signality’s LM317 test cct 01.

by Sancho_P | updated December 02, 2012

adjustable-voltage   behavioral-source   lm317   newbie   test  

Test: LM317 current source PUBLIC

LM317 used as current stabilizer in a test environment to find settings and limits.

by Sancho_P | updated December 02, 2012

behavioral-source   constant-current-source   lm317   newbie   test  

Test: Simply a LED PUBLIC

Test circuit for a newbie in CL. LED “on” or blown? Have fun !

by Sancho_P | updated December 02, 2012

led   newbie  

NTC fan speed control PUBLIC

This is the complete circuit to control the mini fan in my Apple’s Time Capsule by a NTC sensor and a dual timer ICM7556IPD (CMOS). The project basically consisted of three parts because I did not...

by Sancho_P | updated November 13, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm   time-capsule  

NTC converter for fan speed control PUBLIC

A simple converter for a NTC thermal sensor to a voltage signal. The DC-Sweep simulation is used to pick the desired resistance value in series to the NTC.

by Sancho_P | updated November 07, 2012

555   fan-speed-control   newbie   ntc   pwm  

555 Clock for fan speed control PUBLIC

A 25 kHz clock circuit, set to about 75 % duty cycle, using a 555 timer.

by Sancho_P | updated November 07, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm  

555 PWM for fan speed control PUBLIC

I wanted to control a computer’s fan speed by the air temperature at the “hot spot” (the power supply air outlet). The project consists of three parts for easy simulation and was later verified on a...

by Sancho_P | updated November 07, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm  

Tail Brake Light MOSFET PUBLIC

Simple bike enhancement (Markobaldo)

by Sancho_P | updated September 30, 2012

brake-light   can-bus  

Tail Brake Light Test PUBLIC

by Sancho_P | updated September 24, 2012